1 - How to pair your Bluetooth keyboard

Open your 'Bluetooth' settings and tap on the keyboard you want to add. You might be asked to type a code on your keyboard to confirm the pairing.

After a successful pairing, a Notification may appear that prompts you to configure the keyboard. If this doesn't happen you can go your device's 'Languages & Input' menu and tap 'Physical keyboard'. You'll need this to set your language settings as explained below.